Dr. Brockton

Joan Crawford

Acting

Sam Murdock

Michael Gough

Acting

Inspector Greenham

Bernard Kay

Acting

Anne Brockton

Kim Braden

Acting

Malcolm Travers

David Griffin

Acting

Cliff

John Hamill

Acting

Magistrate

Thorley Walters

Acting

Dr. Selbourne

Jack May

Acting

Bill

Geoffrey Case

Visual Effects

Dr. Richard Warren

Robert Hutton

Acting

Colonel Vickers

Simon Lack

Acting

Alan Davis

David Warbeck

Acting

Little Girl

Chloe Franks

Acting

Reporter

Maurice Good

Acting

Trog

Joe Cornelius

Acting

Anaesthetist

John Baker

Acting

Police Officer (uncredited)

Jack Carter

Acting